Bedroom HELP!? What are some good places/websites?

I’m 15, and my room is lime green and hot pink. I am too old for this room! I want my room to be modern and sophisticated. I know I want my walls to be cream or khaki/tan. I want my bedspread to be cream also with mod/funky pillows from stores like Urban Outfitters and Anthropologie. Where are some other places I could look for perhaps pillows, a duvet, a rug, and some curtains.
I’ve looked at Anthropologie, Urban Outfitters, Delias, Pb teen, and other places like that. Help!

http://teensthemes.com

http://girlsthemebedrooms.com/retro/flower-power-decorating-ideas.html